Aerial-insulation-repairing device.



G. T. PARR- AERIAL INSULATION REPAlRlNG DEVICE.- APPLICATION FILED MAY 22, ms

1 269,956. Patented June 18, 1918..

UNITED STATES PATENT OFFICE.

GEORGE 'r. PABR, OF ST. PAUL, MINNESOTA, A-SSIGNOR *ro PETER J. LAVALLE, 0E

ST. PAUL, MINNESOTA.

AERIAL-INSULATION-REPAIRING DEVICE.

Specification of Letters Patent. Patented June 18,1918,

Application filed May 22, 1916. Serial N 0. 99,175. I

To all whom it may concern:

Be it known that GEORGE T. PARK, a citizen of the United States, residing in St. Paul, in the county of Ramsey and State of Minnesota, has invented a new and useful Improvement in Aerial-Insulation-Repairing Devices, of which the following is a specification.

My invention relates to an aerial wire insulating device, and particularly to adevice for repairing and insulating electrical conductors while they are strung on poles and are aerially supported, without removing the same from the supports. My device is of simple construction and can be easily handled by one person while being applied or removed from the conductor or wire.

A further object is in providing a device which is small and compact and still practical in operation. With my device it is not necessary to bend the wire while being reinsulated, or while applying the device to the wire.

A further object is in a device which is practically inclosed when operating on the wire or conductor, and can also be completely closed when not in use, thereby making it easy to carry without danger of spilling the insulating liquid contained therein, and also protecting the working parts in the receptacle. My device can automatically be adjusted to different sized conductors and can be run back and forth, when locked on the same in operative position,'in either direction longitudinally of the-conductor. I

These features and combination of parts hereinafter fully described are illustrated in the accompanying drawing, which forms part of this specification:

Figure 1 is a perspective of my device closed and as it appears when not in use.

Fig. 2 is a side elevation illustrating the device about to be placed on the conductor, or wire.

Fig. 3 is aside elevation showing my device locked in position on the conductor and ready for use.

Fig. 4 is a vertical section of Fig. 3 on the line aaw.

Figs. 5, 6, 7 and 8 are views of details.

Fig. 9 is a detail of an alternative form of the receptacle with a burner attached and a hand brush holder. y In the drawing, a case or receptacle A, which is adapted to contain a liquid insulating compound, is formed with rounded corners and provided with a hood or cover B, which covers and protects the working parts in the receptacle A, when the device is not in. use. p

The hood B is provided with a carrying handle C and slidably connected on one side to the base or receptacle A, by means of bars 2, which are rigidly secured to the cover B near either end thereof. The free end of the bars 2 areadapted to slide in the guides3, which aresecured to the base ofthe receptacle and extend slightly above the top of the same. Securedtothe freeend of each bar 2 is, a spring 4, carrying an in- .wardly extending lug .5, on its free end,

which is adapted to engagein the notches or recesses 6, formed in the base of the re ceptacle A in the path of the bar 2. An opening-7 is formed in the bar 2, allowing free passage of the lug 5, so, as to engage in the notches or recesses, 6.

When the lugs 5 are engaged 1n the lower I notches 6, the cover B and the base. of the receptacleA are lockedin closed position, as illustrated in Fig. 1. llh e springs 4 are formed with outwardly projecting ends 8, which can be readily engaged by the operator to release the lugs from the recesses. Pivoted to the bars 2 are releasing triggers 9, which have free ends 10 and 11, the end A 11 is adapted to be inserted between the spring 4 and'the bar 2 when the lugs 5 are released or disengaged from the notches 6,

and therebyv holding the lugs out of en gagement with the notches 6, allowing the bars 2 to freely slide in the guides 3 and to open the receptacle by pulling upward on the handle C.

A connecting rod 12 is slidably secured to one side of the cover B and base A, respectively, by brackets 18 and has coil springs let on either end thereof. The rod 12 being adapted to limit the opening of -"coated and carry the device A freely along "on the' same.

'ceptacle A, is a grooved wheel 22, which also has a-V shaped groove, in whlch are the cover from the base, and also serving to hold the hood and base together so that the bars 2 will not disengage the. guides 3. The springs 14- act as cushions on the end of the rod 12 and also serve to allow for a little greater opening between the base and the cover of the receptacle, when desired.

On one side of the guides 3 are formed a series of openings 16, into which stop pins 15 may be inserted so as to engage with the end-10, of the trigger 9, when the receptacle is being closed, and thereby automatically releases the springse and'allow-the lugs to engage in the notches 6. The pins l5'imay be secured to the receptacle A by means of a/chain 17, of any other suitable manner to prevent accidental loss, while notin use. It is preferred to have the number of openingslti corresponding to the number of notches 6, and they are so arranged that when the pins 15 strike'the ends 10 on the triggers 9, the lugs 5 are automatically released, and immediately engage in the corresponding notches 6, .fther'eby locking the hood and base in the. position for which the pins were set.

*and'the difierent openings '16, it ispossible for the operator to set the triggers '9 in the position illustrated in Fig. 6 and the pin 15 into the proper opening so that 'when he presses the device or machine together on the conductor, it will lock itself automatically at the properly gaged opening between the hood and baseA.

Freely'journaled in the opposite ends of the hood B are pulleys or sheave wheels 20, havlng V shaped grooves 21, which are adapted to run on the conductor to be The V shaped grooves '21 serve to adapt the pulleys or wheels, to the different sized conductors, at the same time keep thedevice properly tracked.

Centrally disposed'infthe base of the reformed teeth 23, extending about theinner circumference of the groove. The teeth 23 Kare adapted to engage the surface of the conductor D as it passes through the device and tend to rotate the wheel 22. The wheel 224s formed with recesses 25 on its opposite outer faces, in which are detachably secured, in any suitable manner, annular rings 26, having secured to their inner faces, brush bristles 27, to form annular brushes 27, the ends of which meet on the longitudinal center line of the wheel 22, there by forming a rotary brush between the rings in the wheel 22, which is adapted to sweep over the surface of the conductor and deposit or paint a coat of insulation com pound upon the same. The rotary brushes 27 may be removed and replaced by new bru sheswhen'worn out. The lower portion of the rotary brush and wheel is adapted to be immersed in the insulating liquid, (not shown) which is carried in the receptacle A. It is'thus evident that as the brush is rotated bycoining in-contact-withthe con ductor D, that the insulating 111ttB1lttl 'Wlll be earned freely onto the conductor. The

wheel 22is freely journaled on the transverse shaft 24, which is held the vertical supports 28, having lower squaredportions '29, which are adapted to slide vertlcallyun the guide wa s'30, the guide-ways 30"being "secure-dto the opposite sides of the inside of the receptacle A. Coil springs"31' in 'theguide ways'iiO, just below the ends-29 of the'suppo'rts 28, are adapted to keep the 'Wheel22 pressed firmly against the conductor D during the operation of the device. Thus, should the conductor D have an enlarged'portion therein, or should a connecting wire be running out to oneside from the-same, the springs 31would allow the wheel'22 to =be 'depressed without'inpirmg the device. Springs 31 also serve to keep the wheel or brush 2'? 'in uniform contact "with the conductor D. V

'is'provided on the side of the receptacles.

A spring catch 32 and has engaging end 33 which "is adapted to penetrate the wall of the casing and bear against the support 28 on one side, so that when it is desired, the rotary brush may be locked down as illustrated in the 4 detail shown in Fig. 8, and also shown in Fig.2,

"while the device is being applied to the conductor. The notoh'34. in one of the supports "2S'prevents accidental displacement of the rotary brush and wheel 22, should the hood be removedfrom the device, allowing the spring catch'to engage 111 the notch 34.

The alternative construction illustrated'in Fig. 9, shows a 'burner' L,- attached to the "bottom of the receptacle A, having a fuel supply'tankiti, and isadapted to heat the insulating liquid in the receptacleand keep it hot while applying the sameto the conductor D. A shield N encircles theburner to protectit from the wind, etc., and has a series of'openings 30 near the bottom of the material that will withstand heat. By applying the insulating compound hot a great advantage is obtained, as the compound will be deposited on the conductor smoother, and also penetrate the old insulating material which may be left on the conductor.

A brush holder 0, illustrated in Fig. 9,

is adapted to hold the brush R freely inside the device which contains the liquid insulat-j ing 00 111 11 1 Thus, l Of the rp ifgagement with the conductor while applyragged surfaces of old insulating material on the conductor would be thoroughly cleaned off.

A cleaner in the form of a brush might} also be used, and could be attached to theE passes through the insulating device.

In operation the receptacle A is partially filled with a liquid insulating material or compound, and the lugs 5 are disengaged from the notches 6. The triggers 9 are then set in position as illustrated in Fig. 6, so as to hold the lugs 5'0ut of engagement with the notches 6; and by pulling upward on the handle C, the device is opened to the full width allowed by the connecting rod 12. In this open position, the device is placed on the conductor D, as illustrated in Fig. 2. The releasing pins 15, are then placed in the openings 16, to correspond with the gage of the conductor, about to be insulated. The operator then with one hand on the hood B, and the other under the base of the receptacle A, presses the two together. As this is done, the ends 10, of the triggers 9, will strike the pins 15, and automatically release the "lugs 5, on each of the bars 2, thus looking the insulating device in the proper operating position on the conductor, ready for use. A ring 35, is secured in the depression 36, of the base of the receptacle A, to which a snap 37 carrying a rope 38, can be secured and by means of engagement with this rope, from the ground, the operator can easily pull the insulating device back and forth in either direction on the conductor D. As the receptacle slides or rolls along on the conductor, the rotary brush will paint the conductor with the insulating material, thus completely covering the surface of the same.

While I have illustrated one form of de vice, I desire to have it understood that my guide-ways secured to said receptacle adaptreceptacle for holding insulating compound, side of my device 1n such a way that 1t,-:

would run over the conductor before it invention can becarried out byother means and applied to other uses, within the scope of the following claims:

Having described my invention, what I claim and desire to protect by Letters Patent is: 1 i 1. In a device for insulating electrical conductors while strung aerially, comprising, a receptacle for holding insulating compound, a cover having downwardly extending'bars,

ed to receive said bars, carrying wheels freely journaled in said cover, locking means secured to said bars, adapted to automatically lock said cover and receptacle closed, or in open position, a rotary brush journaled in said receptacle adapted to be held in (spring contact with the conductor, and means on the side of said receptacle for holding said brush in depressed position out of ening or removing the device from the conductor. 2. In a device for insulating electrical conductors while strung aerially, comprising, a

. a cover adapted to close said receptacle when 7 not in use, said cover being slidably connected to said receptacle for vertical movement,

spring catches secured to said cover and adapted to engage in notches formed in said receptacle, means for holding said spring catches out of engagement with said notches, means on said receptacle for releasing said spring catches when said cover and receptacle are pressed together to lock said cover and receptacle in a spaced apart position or r in closed position, said receptacle having freely j ournaled therein a rotary brush which is adapted to engage the conductor when it is passed along the same for the purposes specified.

3. In a device for insulating electrical conductorswhile strung aerially, comprising, a receptacle for holding insulating liquid, a cover slidably secured to said receptacle for vertical movement, a connecting rod slidabl secured to said cover and receptacle adapted to limit the opening between said cover andreceptacle, spring means secured to either end of said rod adapted to act as cushions on the same when raising said cover from said receptacle, and means contained in said receptacle for receiving and coating the conductor as the same is passed through said device.

4. In a device for insulating electrical conductors while strung aerially, comprising, a receptacle for holding insulating compound, a cover for closing said receptacle, wheels journaled in said cover for carrying said receptacle on the conductor, a grooved wheel slidably journaled in said receptacle, annular brush membersdetachably secured to said grooved wheel, means on said receptacle for "holdmg said grooved "Wheel and *bru'sh members out of conta'ctwith 'the"c0nduct'0r While epplying -said device t0 the *sztme,

means 1n said groovedwheel' for'engaging f igeeeg'sse eaidbrush to carry insulating liquid from said receptacleto the surface of"the c0n- -du'ctor,said"whee=ls in Said 'c0ver"imdthe inner surface of said grooved Wheel being V'shaped, s0 as to automatically adjust themselves to different sized coliducters.

GEORGE T. 'PARR.

+-'Uopies-ofthispateht"maybe-obtained for "five cents each 'by 'addlessingthe Commissioner cfPatc'nts, -wasnin to1i,'n; c. 

